Biggest downside is that it wants mains power but there maybe a bodge for that if you can find a cable from a battery pack?
There are lots of 12v battery packs out there. This kind of thing https://amzn.eu/d/1fkSwTn
Interesting, although i never know how to check the plug will be the right size!
@andyfallsoff started
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There are lots of 12v battery packs out there. This kind of thing
https://amzn.eu/d/1fkSwTn